/* roulang page: index */
:root {
            --primary: #0d2540;
            --primary-light: #16385c;
            --primary-dark: #081a30;
            --accent: #c8102e;
            --accent-hover: #a30d25;
            --gold: #d4a853;
            --bg-light: #f6f8fb;
            --bg-white: #ffffff;
            --text-dark: #1c2430;
            --text-body: #4a5568;
            --text-muted: #7a8a9a;
            --border: #e3e9f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(13, 37, 64, 0.06);
            --shadow-md: 0 8px 28px rgba(13, 37, 64, 0.10);
            --shadow-lg: 0 18px 45px rgba(13, 37, 64, 0.14);
            --transition: all .3s ease;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1240px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 顶部信息条 ===== */
        .top-bar {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 7px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .top-bar .top-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .top-bar .top-left i {
            color: var(--gold);
            font-size: 13px;
        }

        .top-bar .top-right {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .top-bar .top-right span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .top-bar .top-right i {
            color: var(--gold);
            font-size: 12px;
        }

        @media (max-width: 576px) {
            .top-bar .container {
                justify-content: center;
                text-align: center;
            }

            .top-bar .top-right {
                display: none;
            }
        }

        /* ===== 主导航 ===== */
        .main-nav {
            background: var(--bg-white);
            padding: 0;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border);
            position: relative;
            z-index: 1040;
        }

        .main-nav .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 0;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--accent);
            color: #fff;
            border-radius: 10px;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(200, 16, 46, 0.3);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-text small {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .main-nav .nav-link {
            color: var(--text-body);
            font-weight: 500;
            font-size: 15px;
            padding: 22px 18px !important;
            position: relative;
        }

        .main-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease;
        }

        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--accent);
        }

        .main-nav .nav-link:hover::after,
        .main-nav .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-cta {
            background: var(--accent);
            border: none;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 26px;
            border-radius: 50px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(200, 16, 46, 0.25);
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 16, 46, 0.35);
            color: #fff;
        }

        .main-nav .navbar-toggler {
            border: none;
            padding: 6px 10px;
            font-size: 20px;
            color: var(--primary);
        }

        .main-nav .navbar-toggler:focus {
            box-shadow: none;
        }

        @media (max-width: 991px) {
            .main-nav .nav-link {
                padding: 14px 10px !important;
                border-bottom: 1px solid #f0f2f5;
            }

            .main-nav .nav-link::after {
                display: none;
            }

            .main-nav .navbar-nav {
                padding-top: 8px;
                padding-bottom: 8px;
            }

            .nav-cta {
                display: inline-block;
                margin: 14px 10px 18px;
                text-align: center;
            }

            .main-nav .navbar-nav .nav-item:last-child .nav-link {
                border-bottom: none;
            }
        }

        /* ===== 通用按钮 ===== */
        .btn-custom-primary {
            background: var(--accent);
            border: 2px solid var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 32px;
            border-radius: 50px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 16px rgba(200, 16, 46, 0.22);
        }

        .btn-custom-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 16, 46, 0.3);
        }

        .btn-custom-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 32px;
            border-radius: 50px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-custom-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-custom-light {
            background: var(--gold);
            border: 2px solid var(--gold);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 32px;
            border-radius: 50px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.3);
        }

        .btn-custom-light:hover {
            background: transparent;
            border-color: var(--gold);
            color: var(--gold);
            transform: translateY(-2px);
        }

        .btn-link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--accent);
            font-size: 14px;
            padding: 4px 0;
            border-bottom: 2px solid transparent;
        }

        .btn-link-more:hover {
            color: var(--accent-hover);
            border-bottom-color: var(--accent);
        }

        /* ===== Hero 区域 ===== */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 110px 0 120px;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 26, 48, 0.92) 0%, rgba(13, 37, 64, 0.80) 45%, rgba(13, 37, 64, 0.35) 100%);
            z-index: 1;
        }

        .hero > .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            letter-spacing: 1px;
            margin-bottom: 22px;
        }

        .hero-badge i {
            color: var(--gold);
        }

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .hero-title .accent-text {
            color: var(--gold);
            position: relative;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            max-width: 540px;
            margin-bottom: 32px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-meta-row {
            display: flex;
            gap: 24px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

        .hero-meta-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 14px 24px;
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .hero-meta-item i {
            font-size: 22px;
            color: var(--gold);
        }

        .hero-meta-item .meta-num {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            line-height: 1;
        }

        .hero-meta-item .meta-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.4;
        }

        @media (max-width: 991px) {
            .hero {
                padding: 70px 0 80px;
            }

            .hero-title {
                font-size: 36px;
            }

            .hero-subtitle {
                font-size: 15px;
            }
        }

        @media (max-width: 576px) {
            .hero-title {
                font-size: 28px;
            }

            .hero-meta-row {
                gap: 12px;
            }

            .hero-meta-item {
                padding: 10px 16px;
                flex: 1 1 40%;
            }
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 88px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            background: rgba(200, 16, 46, 0.08);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 0;
        }

        .section-head-center {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-head-center .section-desc {
            margin: 0 auto;
        }

        .section-head-left {
            margin-bottom: 40px;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }

            .section-title {
                font-size: 26px;
            }
        }

        /* ===== 核心说明 ===== */
        .features-section {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
        }

        .features-section .container {
            display: flex;
            align-items: center;
            gap: 50px;
        }

        .features-media {
            flex: 0 0 46%;
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .features-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .features-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, transparent 55%, rgba(13, 37, 64, 0.35) 100%);
        }

        .features-content {
            flex: 1;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 26px;
            margin-top: 8px;
        }

        .feature-item {
            display: flex;
            gap: 16px;
            padding: 20px 22px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(200, 16, 46, 0.25);
        }

        .feature-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 18px;
        }

        .feature-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .feature-item p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            margin-bottom: 0;
        }

        @media (max-width: 991px) {
            .features-section .container {
                flex-direction: column;
                gap: 36px;
            }

            .features-media {
                flex: 0 0 100%;
                width: 100%;
            }

            .features-media img {
                height: 280px;
            }
        }

        @media (max-width: 576px) {
            .feature-item {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: var(--bg-white);
        }

        .category-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: transparent;
        }

        .category-card-cover {
            position: relative;
            overflow: hidden;
            height: 220px;
        }

        .category-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .category-card:hover .category-card-cover img {
            transform: scale(1.05);
        }

        .category-card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(13, 37, 64, 0.55) 100%);
        }

        .category-flag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary);
            border-radius: 50px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: var(--shadow-sm);
        }

        .category-flag i {
            color: var(--accent);
        }

        .category-card-body {
            padding: 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card-body h3 {
            font-size: 21px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .category-card-body p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 18px;
        }

        .category-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .category-tags .tag {
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 3px 12px;
            font-size: 12px;
            color: var(--text-body);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            padding: 84px 0;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(8, 26, 48, 0.88);
        }

        .stats-section .container {
            position: relative;
            z-index: 2;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .stat-item {
            text-align: center;
            padding: 36px 20px;
            border-radius: var(--radius-lg);
            position: relative;
            transition: var(--transition);
        }

        .stat-item::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-number .suffix {
            font-size: 28px;
            color: var(--gold);
        }

        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 8px;
        }

        @media (max-width: 991px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .stat-item {
                padding: 28px 16px;
            }
        }

        /* ===== 最新资讯 ===== */
        .news-section {
            background: var(--bg-light);
        }

        .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(200, 16, 46, 0.15);
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }

        .news-badge {
            display: inline-block;
            background: rgba(200, 16, 46, 0.1);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-title a:hover {
            color: var(--accent);
        }

        .news-card-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-footer {
            border-top: 1px solid #f0f2f5;
            padding-top: 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .empty-state {
            background: var(--bg-white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 60px 20px;
            text-align: center;
            color: var(--text-muted);
        }

        .empty-state i {
            font-size: 42px;
            color: #c0c8d2;
            display: block;
            margin-bottom: 12px;
        }

        /* ===== 服务流程 ===== */
        .process-section {
            background: var(--bg-white);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: process;
        }

        .process-card {
            text-align: center;
            padding: 40px 24px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            background: var(--bg-white);
            position: relative;
            transition: var(--transition);
        }

        .process-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
        }

        .process-card .step-num {
            counter-increment: process;
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 42px;
            font-weight: 800;
            color: rgba(13, 37, 64, 0.08);
            line-height: 1;
        }

        .process-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 22px;
            box-shadow: 0 6px 20px rgba(13, 37, 64, 0.18);
        }

        .process-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .process-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .process-arrow {
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gold);
            font-size: 18px;
            z-index: 2;
        }

        @media (max-width: 991px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-arrow {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }

        .accordion-custom {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-custom .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-custom .accordion-item:first-of-type,
        .accordion-custom .accordion-item:last-of-type {
            border-radius: var(--radius-md);
        }

        .accordion-custom .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            background: var(--bg-white);
            padding: 20px 24px;
            box-shadow: none;
            border: none;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: rgba(200, 16, 46, 0.03);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border: none;
        }

        .accordion-custom .accordion-button::after {
            color: var(--accent);
            font-size: 14px;
        }

        .accordion-custom .accordion-body {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            padding: 96px 0;
            text-align: center;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(8, 26, 48, 0.92), rgba(200, 16, 46, 0.65));
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .cta-title {
                font-size: 28px;
            }

            .cta-desc {
                font-size: 15px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 70px;
        }

        .footer-column h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-column h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .footer-column p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-column ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-column ul li {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-column ul li a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-column ul li a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .footer-column ul li a i {
            font-size: 4px;
            color: var(--gold);
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .footer-contact li i {
            color: var(--gold);
            margin-top: 4px;
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 50px;
            padding: 20px 0 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: var(--gold);
        }

        @media (max-width: 768px) {
            .site-footer {
                padding-top: 50px;
            }

            .footer-column {
                margin-bottom: 30px;
            }
        }

        /* ===== 焦点状态 ===== */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible,
        .nav-link:focus-visible,
        .accordion-button:focus-visible {
            outline: 3px solid rgba(200, 16, 46, 0.4);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f3f7;
        }

        ::-webkit-scrollbar-thumb {
            background: #b8c0cc;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

/* roulang page: article */
:root {
            --primary: #0b3a6f;
            --primary-light: #1a5ea8;
            --accent: #d4a520;
            --accent-light: #e8c766;
            --bg-light: #f5f8fc;
            --bg-dark: #071a2e;
            --text-main: #1c2b3a;
            --text-muted: #5b6b7b;
            --border: #dde3eb;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== 导航 ===== */
        .main-nav {
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(12px);
        }

        .main-nav .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--primary);
        }

        .brand-logo {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(11, 58, 111, 0.25);
        }

        .main-nav .navbar-toggler {
            border: none;
            color: var(--primary);
            font-size: 1.5rem;
            padding: 4px 8px;
            outline: none;
        }

        .main-nav .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11, 58, 111, 0.15);
        }

        .main-nav .nav-link {
            color: var(--text-main);
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            margin: 0 2px;
            font-size: 1.05rem;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(11, 58, 111, 0.06);
        }

        .main-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(11, 58, 111, 0.08);
        }

        .nav-cta {
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            padding: 10px 26px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            font-size: 1rem;
        }

        .nav-cta:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(11, 58, 111, 0.3);
        }

        @media (max-width: 991px) {
            .main-nav {
                padding: 10px 0;
            }
            .navbar-collapse {
                padding: 18px 0 12px;
            }
            .nav-cta {
                display: inline-block;
                margin-top: 10px;
            }
        }

        /* ===== 文章页横幅 ===== */
        .article-hero {
            background: linear-gradient(180deg, rgba(7, 26, 46, 0.85) 0%, rgba(11, 58, 111, 0.75) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 70px 0 90px;
            color: #fff;
            text-align: center;
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.3;
            max-width: 900px;
            margin: 0 auto 16px;
            color: #fff;
        }

        .article-hero .hero-sub {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
        }

        @media (max-width: 768px) {
            .article-hero h1 {
                font-size: 1.8rem;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            background: transparent;
            padding: 20px 0 0;
        }

        .breadcrumb-item {
            font-size: 0.95rem;
        }

        .breadcrumb-item + .breadcrumb-item::before {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        .breadcrumb-item a:hover {
            color: var(--primary);
        }

        /* ===== 文章主体 ===== */
        .article-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 48px;
            margin-top: -60px;
            position: relative;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            padding-bottom: 24px;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border);
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        .article-meta .badge {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.85rem;
        }

        .article-meta .meta-item i {
            color: var(--primary-light);
            margin-right: 6px;
        }

        .article-content {
            font-size: 1.08rem;
            line-height: 1.85;
            color: var(--text-main);
        }

        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: var(--primary);
            margin-top: 36px;
            margin-bottom: 18px;
            font-weight: 700;
        }

        .article-content h2 {
            font-size: 1.7rem;
        }

        .article-content h3 {
            font-size: 1.4rem;
        }

        .article-content img {
            border-radius: 12px;
            box-shadow: var(--shadow);
            margin: 20px 0;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 20px;
        }

        .article-content li {
            margin-bottom: 6px;
        }

        .article-content a {
            color: var(--primary-light);
            border-bottom: 1px solid transparent;
        }

        .article-content a:hover {
            border-bottom-color: var(--primary-light);
            color: var(--primary);
        }

        .article-tags {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .article-tags .tag-label {
            font-weight: 600;
            color: var(--text-muted);
            margin-right: 6px;
        }

        .article-tags .tag {
            display: inline-block;
            background: rgba(11, 58, 111, 0.06);
            color: var(--primary);
            border-radius: 30px;
            padding: 6px 16px;
            font-size: 0.9rem;
            border: 1px solid rgba(11, 58, 111, 0.1);
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* 分享按钮 */
        .share-block {
            margin-top: 30px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .share-block span {
            font-weight: 600;
            color: var(--text-muted);
            margin-right: 6px;
        }

        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-light);
            color: var(--primary);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        @media (max-width: 768px) {
            .article-card {
                padding: 24px;
                margin-top: -40px;
            }
            .article-meta {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 70px 0 30px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 30px;
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .related-card .card-cate {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .related-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .related-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }

        .related-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .related-card .read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .related-card .read-more i {
            margin-left: 5px;
            transition: var(--transition);
        }

        .related-card .read-more:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .related-section {
                padding: 30px 0 20px;
            }
            .section-title {
                font-size: 1.6rem;
            }
        }

        /* ===== CTA板块 ===== */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            padding: 70px 0;
            border-radius: 24px;
            margin: 50px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(11, 58, 111, 0.9), rgba(7, 26, 46, 0.8)),
                url('/assets/images/backpic/back-2.png') center/cover;
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            margin-bottom: 30px;
        }

        .cta-btn {
            background: var(--accent);
            color: var(--bg-dark);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .cta-btn:hover {
            background: #fff;
            color: var(--bg-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 50px 0;
                border-radius: 18px;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
        }

        /* ===== 错误页面 ===== */
        .error-wrap {
            padding: 120px 0 90px;
            text-align: center;
        }

        .error-wrap .error-icon {
            font-size: 4rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .error-wrap h1 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .error-wrap p {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-bottom: 30px;
        }

        .error-wrap .btn-home {
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }

        .error-wrap .btn-home:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: #fff;
            padding: 70px 0 0;
            margin-top: 40px;
        }

        .site-footer .footer-column {
            margin-bottom: 30px;
        }

        .site-footer h4 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
        }

        .site-footer h5 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }

        .site-footer p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 10px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .site-footer ul li a i {
            font-size: 0.75rem;
            color: var(--accent);
        }

        .site-footer ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact li {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 18px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            margin-top: 30px;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 768px) {
            .site-footer {
                padding-top: 40px;
            }
            .site-footer .footer-column {
                margin-bottom: 24px;
            }
        }

        /* ===== 通用按钮 ===== */
        .btn:focus,
        .form-control:focus {
            box-shadow: 0 0 0 4px rgba(11, 58, 111, 0.15);
            outline: none;
        }

        /* 滚动条 */
        ::-webkit-scrollbar {
            width: 10px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(11, 58, 111, 0.2);
            border-radius: 20px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: rgba(11, 58, 111, 0.35);
        }

/* roulang page: category1 */
:root {
            --primary: #1a3e6e;
            --primary-dark: #0f2a4a;
            --primary-light: #2a5d9e;
            --accent: #c8a86b;
            --accent-hover: #b89650;
            --light-bg: #f5f7fb;
            --text-main: #1f2733;
            --text-weak: #667085;
            --border-color: #e4e8ef;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(15, 42, 74, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 42, 74, 0.10);
            --shadow-lg: 0 18px 50px rgba(15, 42, 74, 0.14);
            --transition: all 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            line-height: 1.75;
            background: #fff;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== 顶部信息条 ===== */
        .top-info-bar {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
            padding: 6px 0;
        }

        .top-info-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
        }

        .top-info-bar a {
            color: rgba(255, 255, 255, 0.85);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .top-info-bar a:hover {
            color: var(--accent);
        }

        .top-info-bar i {
            color: var(--accent);
        }

        /* ===== 主导航 ===== */
        .main-nav {
            background: #ffffff;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 4px 20px rgba(15, 42, 74, 0.04);
        }

        .main-nav .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 21px;
            color: var(--primary);
        }

        .main-nav .brand-logo {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 14px rgba(26, 62, 110, 0.25);
        }

        .main-nav .brand-text {
            color: var(--primary);
        }

        .navbar-toggler {
            border: none;
            font-size: 22px;
            color: var(--primary);
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            border-radius: 8px;
        }

        .main-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 16px !important;
            border-radius: var(--radius-sm);
            position: relative;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 62, 110, 0.04);
        }

        .main-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 9px 24px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

        .nav-cta:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 168, 107, 0.4);
        }

        .nav-cta:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        /* ===== 页头 Banner ===== */
        .page-banner {
            position: relative;
            padding: 108px 0 96px;
            background: linear-gradient(135deg, rgba(15, 42, 74, 0.92), rgba(26, 62, 110, 0.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            text-align: center;
        }

        .page-banner .badge-cat {
            background: rgba(200, 168, 107, 0.18);
            border: 1px solid var(--accent);
            color: var(--accent);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 30px;
            letter-spacing: 1px;
        }

        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            margin: 14px 0 18px;
            letter-spacing: 1px;
            line-height: 1.3;
        }

        .page-banner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            margin: 0 auto;
        }

        .banner-meta {
            margin-top: 22px;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 50px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

            .page-banner p {
                font-size: 15px;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            background: var(--light-bg);
            border-bottom: 1px solid var(--border-color);
            padding: 10px 0;
        }

        .breadcrumb-item a {
            color: var(--text-weak);
            font-size: 13px;
        }

        .breadcrumb-item a:hover {
            color: var(--primary);
        }

        .breadcrumb-item.active {
            color: var(--primary);
            font-size: 13px;
        }

        .breadcrumb-item+.breadcrumb-item::before {
            color: #a0aec0;
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 76px 0;
        }

        .section-block.alt-bg {
            background: var(--light-bg);
        }

        .section-title-wrap {
            text-align: center;
            margin-bottom: 46px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(26, 62, 110, 0.07);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 30px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-subtitle {
            color: var(--text-weak);
            font-size: 15px;
            max-width: 640px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 50px 0;
            }

            .section-title {
                font-size: 26px;
            }
        }

        /* ===== 分类介绍区 ===== */
        .intro-section {
            padding: 76px 0 50px;
            background: #fff;
        }

        .intro-card {
            background: var(--light-bg);
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 20px;
            height: 100%;
            transition: var(--transition);
        }

        .intro-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(26, 62, 110, 0.2);
        }

        .intro-card .icon-box {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
        }

        .intro-card h4 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .intro-card p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* ===== 内容卡片网格 ===== */
        .content-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 62, 110, 0.15);
        }

        .content-card .card-img {
            position: relative;
            overflow: hidden;
            height: 200px;
            background: var(--light-bg);
        }

        .content-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .content-card:hover .card-img img {
            transform: scale(1.05);
        }

        .content-card .card-img .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 42, 74, 0.85);
            color: #fff;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
        }

        .content-card .card-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .content-card h3 a {
            color: var(--text-main);
        }

        .content-card h3 a:hover {
            color: var(--primary);
        }

        .content-card .card-text {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 14px;
        }

        .card-footer-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 22px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-weak);
            background: rgba(245, 247, 251, 0.4);
        }

        .card-footer-info a {
            color: var(--primary);
            font-weight: 500;
            font-size: 13px;
        }

        .card-footer-info a:hover {
            color: var(--accent);
        }

        /* ===== 景区块列表 ===== */
        .list-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .list-card:hover {
            border-color: rgba(26, 62, 110, 0.2);
            box-shadow: var(--shadow-sm);
        }

        .list-card .list-header {
            padding: 14px 22px;
            background: var(--light-bg);
            font-weight: 700;
            font-size: 15px;
            color: var(--primary);
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .list-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .list-card ul li {
            padding: 12px 22px;
            border-bottom: 1px solid rgba(228, 232, 239, 0.7);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            transition: var(--transition);
        }

        .list-card ul li:last-child {
            border-bottom: none;
        }

        .list-card ul li:hover {
            background: rgba(26, 62, 110, 0.03);
            padding-left: 28px;
        }

        .list-card ul li a {
            color: var(--text-main);
            font-weight: 500;
            line-height: 1.6;
        }

        .list-card ul li a:hover {
            color: var(--primary);
        }

        .list-card ul li i {
            color: var(--accent);
            font-size: 12px;
            margin-top: 5px;
        }

        /* ===== 城市卡片 ===== */
        .city-card {
            text-align: center;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 32px 20px;
            height: 100%;
            transition: var(--transition);
            position: relative;
        }

        .city-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            background: linear-gradient(145deg, #fff, rgba(26, 62, 110, 0.03));
        }

        .city-card .city-icon {
            width: 62px;
            height: 62px;
            margin: 0 auto 16px;
            border-radius: 18px;
            background: rgba(26, 62, 110, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            transition: var(--transition);
        }

        .city-card:hover .city-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 10px 24px rgba(26, 62, 110, 0.35);
        }

        .city-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .city-card p {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 14px;
        }

        .city-card .city-meta {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .city-card .city-meta span {
            background: var(--light-bg);
            padding: 3px 10px;
            border-radius: 20px;
        }

        /* ===== 流程步骤 ===== */
        .step-flow {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: 24px;
            padding: 54px 40px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .step-flow::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }

        .step-flow .step-item {
            text-align: center;
            position: relative;
            padding: 0 16px;
        }

        .step-flow .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 18px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(200, 168, 107, 0.4);
        }

        .step-flow h5 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .step-flow p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 0;
        }

        .step-flow .step-item:not(:last-child)::after {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -18px;
            top: 22px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
            z-index: 1;
        }

        @media (max-width: 991px) {
            .step-flow .step-item:not(:last-child)::after {
                display: none;
            }

            .step-flow {
                padding: 40px 20px;
            }
        }

        /* ===== 特色数据 ===== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-item {
            background: #fff;
            border-radius: 18px;
            border: 1px solid var(--border-color);
            padding: 34px 20px;
            text-align: center;
            transition: var(--transition);
        }

        .data-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(26, 62, 110, 0.2);
            transform: translateY(-3px);
        }

        .data-item .data-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .data-item .data-label {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .data-item .data-num {
                font-size: 30px;
            }
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            background: #fff;
            border-radius: 18px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(15, 42, 74, 0.04);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question:focus {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }

        .faq-question i {
            color: var(--accent);
            font-size: 14px;
            transition: transform 0.3s ease;
        }

        .faq-question[aria-expanded="true"] i {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 24px;
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.9;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(15, 42, 74, 0.94), rgba(26, 62, 110, 0.88)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            border-radius: 24px;
            padding: 58px 48px;
            color: #fff;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 800;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
        }

        .cta-section .btn-light {
            background: var(--accent);
            border: none;
            color: var(--primary-dark);
            font-weight: 600;
            border-radius: 50px;
            padding: 12px 28px;
            transition: var(--transition);
        }

        .cta-section .btn-light:hover {
            background: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 255, 255, 0.2);
        }

        .cta-section .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            border-radius: 50px;
            padding: 12px 28px;
            transition: var(--transition);
        }

        .cta-section .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        @media (max-width: 576px) {
            .cta-section {
                padding: 40px 24px;
            }

            .cta-section h2 {
                font-size: 22px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: #fff;
            padding: 56px 0 0;
            margin-top: 70px;
        }

        .site-footer h4,
        .site-footer h5 {
            color: #fff;
            font-weight: 700;
        }

        .site-footer h4 {
            font-size: 20px;
            margin-bottom: 16px;
        }

        .site-footer h5 {
            font-size: 16px;
            margin-bottom: 20px;
        }

        .site-footer p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            padding: 5px 0;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .site-footer ul li i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-column {
            margin-bottom: 30px;
        }

        .footer-contact li {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact li i {
            color: var(--accent);
            width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 24px 0;
            margin-top: 20px;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 13px;
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 辅助 ===== */
        .btn-primary {
            background: var(--primary);
            border: none;
            border-radius: 50px;
            padding: 10px 26px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-primary:hover {
            background: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(200, 168, 107, 0.4);
        }

        .btn-outline-primary {
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: 50px;
            padding: 10px 26px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .badge-soft {
            background: rgba(26, 62, 110, 0.08);
            color: var(--primary);
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 13px;
        }

        @media (max-width: 992px) {
            .main-nav .navbar-collapse {
                padding: 18px 0;
                background: #fff;
                border-top: 1px solid var(--border-color);
                margin-top: 10px;
            }

            .main-nav .nav-link {
                padding: 10px 16px !important;
            }

            .nav-cta {
                margin-top: 12px;
                display: inline-block;
            }
        }

        @media (max-width: 576px) {
            .top-info-bar .container {
                justify-content: center;
                font-size: 12px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .card-footer-info {
                flex-direction: column;
                gap: 6px;
                align-items: flex-start;
            }
        }